ADMIN section tab name bracket display issue

[grassfrog]

On one of my sites, I noticed that when you log in the site doesn't display the tabs in admin properly, instead showing tab names in brackets (see attached).

I recently upgraded to the latest GS 3.2.0 but that didn't fix the issue. Web Site Health Check isn't showing any errors. Entire site has permissions set to owner:psacln with 777. Front end displays just fine, it's just that the admin looks weird with all the


{TAB_LOGOUT}
{WELCOME} grassfrog!
{TAB_PAGES}
{TAB_FILES}
{TAB_THEME}
{TAB_BACKUPS}
{PLUGINS_NAV}

The only tabs in Admin that display correctly are Links (Link Manager 2) and Gallery.

Can someone tell me what I need to correct?

Thanks!